## Objects

Object defined — links to a behavior:
```yaml
id: copper_rock
name: copper rock
color: "178"                   # xterm-256 color index (0-255)
behavior: mine_copper
```

Tree object:
```yaml
id: oak_tree
name: oak tree
color: "113"
behavior: chop_oak
```

Color accepts xterm-256 indices with optional modifiers (`bold`, `dim`, `underline`) and gradients (`g:196,82`). In ANSI mode, extended colors downgrade to the nearest ANSI color.

Hidden object — doesn't appear in room's object list, only discoverable via description or experimentation:
```yaml
id: iron_gate
name: iron gate
behavior: iron_gate_toggle
hidden: true
props:
  description: "A heavy iron gate set into the north wall."
```

Decorative object (no behavior):
```yaml
id: lumby_fountain
name: town fountain
behavior: ""
props:
  description: "Clear water sparkles in the sunlight."
```

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